Struct Sphere

pub struct Sphere {
    pub center: Point3,
    pub radius: f64,
    pub material: Option<Arc<dyn Material>>,
}

A sphere defined by a center, a radius, and an optional material.

Fields

center: Point3

Center of the sphere.

radius: f64

Radius of the sphere (negative radius creates a hollow sphere).

material: Option<Arc<dyn Material>>

Material of the sphere (None means no material is assigned).

Implementations

impl Sphere

pub fn new(center: Point3, radius: f64) -> Self

Creates a sphere without a material (backward-compatible with earlier chapters).

pub fn with_material( center: Point3, radius: f64, material: Arc<dyn Material>, ) -> Self

Creates a sphere with a material (used from chapter 1.9 onward).

Trait Implementations

impl Hittable for Sphere

fn hit(&self, r: &Ray, t_min: f64, t_max: f64) -> Option<HitRecord>

Returns Some(HitRecord) if the ray intersects in the interval [t_min, t_max], or None.